Finding the Fourth Proportional to 7,022,437.75, 9,690,964.10 and 3,803,173.75
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Solution
The fourth proportional to 7,022,437.75, 9,690,964.10 and 3,803,173.75 is: 5,248,379.78
Step by Step Solution
- Step 1: Write the proportion equation
7,022,437.75 : 9,690,964.10 = 3,803,173.75 : x - Step 2: Convert to fraction form
7,022,437.75/9,690,964.10 = 3,803,173.75/x - Step 3: Cross multiply
7,022,437.75x = 9,690,964.10 × 3,803,173.75 - Step 4: Simplify right side
7,022,437.75x = 36,856,420,277,312.38 - Step 5: Solve for x
x = 36,856,420,277,312.38/7,022,437.75 - Step 6: Final answer
x = 5,248,379.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.